<template>
  <view>
    <view class="search-box">
      <uni-search-bar :radius="100" @input="input" cancelButton="none" focus="true"></uni-search-bar>
    </view>
    <view class="sugg-list" v-if="searchResults.length != 0">
      <view class="sugg-item" v-for="(item,i) in searchResults" :key="i" @click="gotoDetail(item)">
        <view class="goods_name">{{item.goods_name}}</view>
        <uni-icons type="right"></uni-icons>
      </view>
    </view>
    <view class="history-box" v-else>
      <view class="history-title">
        <text>搜索历史</text>
        <uni-icons type="trash" @click="clear""></uni-icons>
      </view>
      <view class="history-list">
        <uni-tag @click="gotoGoodsList(item)" :text="item" v-for="(item,i) in historys" :key="i"></uni-tag>
      </view>
    </view>
  </view>
</template>

<script>
  export default {
    data() {
      return {
        timer: null,
        kw: "",
        searchResults: [],
        historyList: ['a','app','apple']
      };
    },
    onLoad() {
      this.historyList = JSON.parse(uni.getStorageSync('kw')||'[]')
    },
    methods: {
      input(value){
       clearTimeout(this.timer)
       this.timer = setTimeout(() => {
           console.log(value);
           this.kw = value
           this.getSearchList()
        },500)
      },
      async getSearchList(){
        if(!this.kw){
          this.searchResults = []
          return
        }
        const {data: res} = await uni.$http.get("/api/public/v1/goods/qsearch?query="+this.kw)
        if(res.meta.status != 200) return uni.$showMessage()
        this.searchResults = res.message
        this.saveHistory()
      },
      saveHistory(){
        // this.historyList.push(this.kw)
        let set = new Set(this.historyList)
        set.delete(this.kw)
        set.add(this.kw)
        this.historyList = Array.from(set)
        uni.setStorageSync('kw',JSON.stringify(this.historyList))
      },
      gotoDetail(item){
        uni.navigateTo({
          url:"/subpkg/goods_detail/goods_detail?goods_id="+item.goods_id
        })
      },
      clear(){
        this.historyList = []
        uni.setStorageSync('kw','[]')
      },
      gotoGoodsList(item){
        uni.navigateTo({
          url:'/subpkg/goods_list/goods_list?query='+item
        })
      }
    },
    computed: {
      historys(){
        return [...this.historyList].reverse()
      }
    }
  }
</script>

<style lang="scss">
.search-box {
  background-color: #c00000;
}
.sugg-list{
  padding: 0 5px;
  .sugg-item {
    font-size: 12px;
    padding: 13px 0;
    border: 1px solid #efefef;
    display: flex;
    align-items: center;
    justify-content: space-between;
    .goods_name{
      white-space: nowrap;
      overflow: hidden;
      text-overflow: ellipsis;
      margin-right: 3px;
    }
  }
}
.history-box {
  padding: 0 5px;
  .history-title {
    display: flex;
    justify-content: space-between;
    height: 40px;
    align-items: center;
    font-size: 13px;
    border-bottom: 1px solid #efefef;
  }
  .history-list {
    display: flex;
    flex-wrap: wrap;
    .uni-tag {
      margin-top: 5px;
      margin-right: 5px;
    }
  }
}
</style>